Ski Boot Closure Cable Guide for Precise Glove Adjustment

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Solution Overview

Problem

Existing ski mountaineering boot closure systems lack precise adjustment capabilities, particularly when the leg portion is prevented from rotating with respect to the foot portion, and are difficult to adjust while wearing gloves, often requiring additional elements for repositioning the closure hook.

Innovation Solution

A boot with an adjustment device featuring a cable system where a looped adjustment cable surrounds the leg portion, allowing for continuous adjustment by sliding through a cable guide with a loop opening element, enabling easy grip and precise locking, even while wearing gloves.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a closing band with hook and seats is used to adjust leg portion closure, then the closure can be adjusted to different positions, but precise intermediate adjustment between positions is not possible

Engineering Contradiction:
Improveclosure adjustment precisionVSAvoidclosure system structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the adjustment mechanism from the traditional hook-seats system and implements a cable-driven system where the hook position can be continuously adjusted along the cable without being constrained to discrete seats. This allows precise intermediate positions to be achieved while simplifying the overall structure by eliminating the need for multiple fixed seats.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transforms the static hook-seats adjustment system into a dynamic cable-driven system where the hook can move continuously along the cable. This dynamic approach enables precise adjustment to any position along the cable length, not just predefined seats, while maintaining structural simplicity through the flexible cable mechanism.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a lace or cable system with multiple elements is used for adjustment, then the closure can be adjusted, but the process becomes complex and difficult to operate while wearing gloves

Engineering Contradiction:
Improveclosure adjustment easeVSAvoidadjustment mechanism elements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes unnecessary intermediate elements from the adjustment system, using a direct cable-hook mechanism without requiring laces, handles, or other auxiliary components. This extraction of essential elements simplifies the operation to a single intuitive action: pulling the cable to adjust and lock the hook position, which is easily performable with gloves on.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cable system is designed to be self-operating through a simple pull action that simultaneously adjusts and locks the hook position. The system serves itself by using the cable's tension to both move the hook to the desired position and secure it in place, eliminating the need for separate adjustment and locking mechanisms that would complicate glove operation.

Inventive Principle:
Principle #25Self-service

3Reliability

If the leg portion is prevented from rotating with respect to the foot portion, then ankle support is improved, but the ability to adjust closure becomes limited

Engineering Contradiction:
Improveankle support stabilityVSAvoidclosure adjustment flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic cable adjustment system that allows the leg portion closure to be precisely adjusted even when the leg portion is locked in a fixed rotational position relative to the foot portion. The cable mechanism provides continuous adjustment capability along the leg portion's length, maintaining adaptability and versatility independent of rotational movement, thus preserving ankle support stability while enabling flexible closure adjustment.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4018867B1Boot comprising a device for adjusting the closure of the leg portion
Publication Date: 2023.07.19 OBER ALP
  • EP4018867B1 patent drawingFigure 1
  • EP4018867B1 patent drawingFigure 2
  • EP4018867B1 patent drawingFigure 3~4

AI summary

A boot (12) comprising a foot portion (14) and a leg portion (16) projecting from the foot portion (14). The boot (12) also comprises a device (18) for adjusting the closure of the leg portion (16), which adjustment device is provided with at least one adjustment cable (20) adapted to at least partially surround the leg portion (16), the adjustment cable having a first end (202) that is integral with the leg portion (16), and a second end (204). The leg portion (16) is provided with a cable guide (22) comprising at least one through hole (24) having an inlet opening (242) and an outlet opening (244). The adjustment cable (20) is inserted into the at least one through hole (24) at the inlet opening (242) so as to protrude with a slot (26) from the outlet opening (244), and with an end portion (206) comprising the second end (204) from the inlet opening (242). The end portion (206) is inserted into the slot (26). Moreover, the adjustment device (18) comprises an opening element (28) for the slot (26), which element is at least partially inserted into the slot (26).